Differential D1810 Diff 6120 source/blender/blenkernel/intern/curve.c

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source/blender/blenkernel/intern/curve.c

Show First 20 Lines • Show All 706 Lines • ▼ Show 20 Lines	while (a--) {
/* Surfaces doesn't use bevel, so no need to take radius into account. */		/* Surfaces doesn't use bevel, so no need to take radius into account. */
minmax_v3v3_v3(min, max, bp->vec);		minmax_v3v3_v3(min, max, bp->vec);
}		}
bp++;		bp++;
}		}
}		}
}		}

		float BKE_nurb_length_get(Nurb *nu)
		{
		BezTriple bezt, prevbezt;
		BPoint bp, prevbp;
		int a, b;
		float length = 0.0f;
		int resolu = nu->resolu;
		int pntsu = nu->pntsu;
		float points, pntsit, *prevpntsit;

		if (nu->type == CU_POLY) {
		a = nu->pntsu - 1;
		bp = nu->bp;
		if (nu->flagu & CU_NURB_CYCLIC) {
		++a;
		prevbp = nu->bp + (nu->pntsu - 1);
		}
		else {
		prevbp = bp;
		bp++;
		}

		while (a--) {
		length += len_v3v3(prevbp->vec, bp->vec);
		prevbp = bp;
		++bp;
		}
		}
		else if (nu->type == CU_BEZIER) {
		points = (float )MEM_mallocN(3 sizeof(float) * (resolu + 1), "getLength_bezier");
		a = nu->pntsu - 1;
		bezt = nu->bezt;
		if (nu->flagu & CU_NURB_CYCLIC) {
		++a;
		prevbezt = nu->bezt + (nu->pntsu - 1);
		}
		else {
		prevbezt = bezt;
		++bezt;
		}

		while (a--) {
		if (prevbezt->h2 == HD_VECT && bezt->h1 == HD_VECT) {
		length += len_v3v3(prevbezt->vec[1], bezt->vec[1]);
		}
		else {
		for (int j = 0; j < 3; j++) {
		BKE_curve_forward_diff_bezier(prevbezt->vec[1][j], prevbezt->vec[2][j],
		bezt->vec[0][j], bezt->vec[1][j],
		points + j, resolu, 3 * sizeof(float));
		}

		prevpntsit = pntsit = points;
		b = resolu;
		while (b--) {
		pntsit += 3;
		length += len_v3v3(prevpntsit, pntsit);
		prevpntsit = pntsit;
		}
		}
		prevbezt = bezt;
		++bezt;
		}

		MEM_freeN(points);
		}
		else if (nu->type == CU_NURBS) {
		if (nu->pntsv == 1) {
		points = (float )MEM_callocN(3 sizeof(float) * pntsu * resolu, "getLength_nurbs");

		BKE_nurb_makeCurve(nu, points,
		NULL, NULL, NULL,
		resolu, 3 * sizeof(float));

		if (nu->flagu & CU_NURB_CYCLIC) {
		b = pntsu * resolu + 1;
		prevpntsit = points + 3 * (pntsu * resolu - 1);
		pntsit = points;
		}
		else {
		b = (pntsu - 1) * resolu;
		prevpntsit = points;
		pntsit = points + 3;
		}

		while (--b) {
		length += len_v3v3(prevpntsit, pntsit);
		prevpntsit = pntsit;
		pntsit += 3;
		}

		MEM_freeN(points);
		}
		}

		return length;
		}

/* be sure to call makeknots after this */		/* be sure to call makeknots after this */
void BKE_nurb_points_add(Nurb *nu, int number)		void BKE_nurb_points_add(Nurb *nu, int number)
{		{
BPoint *bp;		BPoint *bp;
int i;		int i;

nu->bp = MEM_recallocN(nu->bp, (nu->pntsu + number) * sizeof(BPoint));		nu->bp = MEM_recallocN(nu->bp, (nu->pntsu + number) * sizeof(BPoint));

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